Search results
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Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae) off the Chilean coast
fisheries of the patagonian toothfish Dissostichus eleginoides related with the selectivity of the type and ... size of hooks used in the longlines. Original data obtained during 1991 on the coast of Valdivia, South ... . The size frequency of the population collected with straight hooks No3 and 4 are not significatively ... as the number of the straight hook increases (for example from 4 to 3) or when they change from ...
Meeting Document : WG-FSA-91/11 : Author(s): C.A. Moreno (Chile)
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Preliminary observation about the possibility of Antarctic krill escapement from a trawl net
underwater video camera attached on the trawl net of Japanese commercial trawler Fukuei-maru (4,350.62 GT) in ... 2011. To avoid the influence of camera lighting on krill behavior, the observation was conducted during ... daytime. Few krill appeared to escape from posterior part of trawl net. When the trawl net caught dense ... krill swarms, krill escaped from anterior part of trawl net. Krill were observed to swim actively after ...
Meeting Document : WG-EMM-12/66 : Author(s): K. Fujita and S. Hasegawa (Japan)
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Methodological aspects of the International Synoptic Krill Survey in Area 48, 2019
Abstract: The effect of differences in the methodology used for the CCAMLR 2000 krill acoustic ... survey and the 2019 synoptic survey were considered. These were 1) the effect of acoustic surveying at ... effect of krill discrimination method. Surveying during the day only produced a 6% increase in the ... distributions. The choice of krill discrimination method had a marked effect on the per-stratum biomass ...
Meeting Document : SG-ASAM-2019/10 : Author(s): G. Macaulay, G. Skaret, T. Knutsen and B. Krafft
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A Risk Assessment and ancillary approaches to facilitate the management of the krill fishery as envisaged by WG-EMM-2019
likelihood that CCAMLR will be able to update its management of the krill fishery in subareas 48.1-4 by the ... time CM 51-07 expires. A key element of this procedure is the extension of the Risk Assessment to ... enable catches to be distributed across the area taking account of estimated predator demand. We request ... that CCAMLR allocate funds from the General Science Capacity Fund to enable this component of the ...
Meeting Document : SC-CAMLR-38/17 : Author(s): Delegations of the United Kingdom and Australia
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High densities of pennatulaceans (sea pens) encountered at sites in the South Orkney Islands (Subarea 48.2): three potential Vulnerable Marine Ecosystems
Abstract: High densities of pennatulaceans (Phylum Cnidaria: Order Pennatulacea), a vulnerable ... marine ecosystem (VME) indicator taxa, were encountered at three sites on the northeastern shelf of the ... South Orkney Islands (Subarea 48.2). The details of these encounters, utilizing occurrence and abundance ... currently registered VMEs, one of which was based solely on high densities pennatulaceans. Although the ...
Meeting Document : WG-EMM-18/36 : Author(s): C.D. Jones
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Report of the Workshop for the Analysis on the Anomalously High CPUE by Korean Vessels in the CCAMLR Area
CCAMLR Area, organized by the Ministry of Oceans and Fisheries of Korea with the assistance of the CCAMLR ... suggested at the Workshop are described in the report. Author(s): Delegation of the Republic of Korea Title ... : Report of the Workshop for the Analysis on the Anomalously High CPUE by Korean Vessels in the CCAMLR Area ...
Meeting Document : WG-SAM-13/39 : Author(s): Delegation of the Republic of Korea
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Preliminary tag-recapture based population assessment of Antarctic toothfish in Subarea 48.4
Abstract: The stock of Antarctic toothfish (D. mawsoni) in CCAMLR Subarea 48.4 is estimated from ... tagging returns to be 979.3 tonnes in 2017. Applying the CCAMLR agreed precautionary assumption of average ... biomass across the time series and harvest rate of γ = 0.038, implies a 2017/18 yield of 37 tonnes ... compared to the 2016/17 catch limit of 38 tonnes. Author(s): N.D. Walker and T. Earl Title: Preliminary ...
Meeting Document : WG-FSA-17/49 : Author(s): N.D. Walker and T. Earl
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Short note on time series of Drake Passage Oscillation Index (DPOI) and its influence on environmental variability
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... , between Rio Gallegos, Argentina, and Base Esperanza, at the tip of the Antarctic Peninsula during 1982 ...
Meeting Document : WG-EMM-07/14 : Author(s): M. Naganobu and K. Kutsuwada (Japan)
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Trends in breeding numbers and survival of black-browed (Thalassarche melanophrys) and grey-headed albatrosses (T. chrysostoma) breeding on Macquarie Island
are globally threatened seabirds that breed on remote subantarctic islands. Population trends of black ... calculated for both species over similar time frames. Breeding numbers and survival rates of black-browed and ... conclusive evidence of survival varying over time and it is unlikely that these populations have been ... subantarctic populations of these species and may be attributed to their foraging ranges not overlapping ...
Meeting Document : WG-FSA-04/48 : Author(s): A. Terauds, R. Gales and R. Alderman (Australia)
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Stock assessment of D. eleginoides in Subarea 48.3 using dynamic production models
in subarea 48.3. This type of the models differ from the models currently used by CCAMLR Working ... Schaefer and Fox production functions) were used: total yield for a series of years and abundance index ... estimates by years of fishing. Both models showed that the D. eleginoides stock status at the initial period ... of intensive fishery was at the level of 22-24 thousand tons. In 1989-1990 stock size increased (to ...
Meeting Document : WG-FSA-02/78 : Author(s): P.S. Gasiukov and R.S. Dorovskich (Russia)